Description
High Quality Internal Tooth Starlock Washers Kit
Set Includes 7 Most Used Sizes: M3 M4 M5 M6 M8 M10 M12,320pcs in box
Made of 65Mn metal steel, black oxide finish Anti-corrosion and durable
Wide Application: used in machinery equipment, industrial production of shock absorption and insulation, can meet your different needs in daily life
A Lock washer exerts a spring force between the fasteners head and the substrate, which maintains the washer hard against the substrate and the bolt thread hard against the nut or substrate thread, creating more friction and resistance to rotation.
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